Edgeworthia

Edgeworthia
	E. chrysantha; (synon. E. papyrifera, E. tomentosa)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malvales
Family:	Thymelaeaceae
Subfamily:	Thymelaeoideae
Genus:	Edgeworthia; Meisn.
Type species
	Edgeworthia gardneri ;
Species
	See text

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Edgeworthia (paper bush) is a genus of plants in the family Thymelaeaceae. When the genus was first described, it was published twice in the same year (1841), in two separate publications: Plantarum vascularium genera: secundum ordines naturales digesta eorumque differentiae et affinitates tabulis diagnostacis expositae;^[1] and Denkschriften der Regensburgischen Botanischen Gesellschaft.^[2] The genus was named in honour of Michael Pakenham Edgeworth, an Irish-born botanist and official in the Bengal Civil Service, then stationed in India, and for his half-sister, writer Maria Edgeworth.^[2]

Trichotomous branching

At least one member of the genus, Edgeworthia chrysantha, has the extremely unusual ability to branch trichotomously - the apical meristem forming the end of each stem splits into three sections at once. This trait is shared with no other known flowering plant.^[4]

Species

Species list from both GRIN^[5] and ThePlantList^[6]

Image	Scientific name	Distribution
	Edgeworthia albiflora Nakai	Sichuan, China
	Edgeworthia chrysantha Lindl.	Fujian, Guangdong, Guangxi, Guizhou, Henan, Hunan, Jiangxi, Yunnan, Zhejiang provinces of China
	Edgeworthia eriosolenoides K.M.Feng & S.C.Huang	SE Yunnan, China
	Edgeworthia gardneri (Wall.) Meisn.	Bhutan, India, N Myanmar, Nepal, China(E Xizang, NW Yunnan), Vietnam
	Edgeworthia longipes Lace	Myanmar, India

References

^ ^a ^b In: Plantarum vascularium genera: secundum ordines naturales digesta eorumque differentiae et affinitates tabulis diagnostacis expositae. 1: 330. 1841. "Name - !Edgeworthia Meisn". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved June 30, 2011.
^ ^a ^b ^c In: Denkschriften der Regensburgischen Botanischen Gesellschaft. Regensburg. iii. (1841) 280. t. 6. "Plant Name Details for Genus Edgeworthia". IPNI. Retrieved June 30, 2011.
^ The type species, E. gardneri was taken from its basionym, Daphne gardneri (which was first published in Asiatic Researches 13: 388, pl. 9. 1820.) "Name - Daphne gardneri Wall". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved June 30, 2011.
^ Iwamoto, A.; Matsumura, Y.; Ohba, H.; Murata, J.; Imaichi, R. (2005-08-01). "Development and structure of trichotomous branching in Edgeworthia chrysantha (Thymelaeaceae)". American Journal of Botany. 92 (8): 1350–1358. doi:10.3732/ajb.92.8.1350. ISSN 0002-9122. PMID 21646155.
^ GRIN. "Species in GRIN for genus Edgeworthia". Taxonomy for Plants. National Germplasm Resources Laboratory, Beltsville, Maryland: USDA, ARS, National Genetic Resources Program. Archived from the original on December 11, 2012. Retrieved June 30, 2011.
^ "Query for Edgeworthia". ThePlantList. Retrieved June 30, 2011.

This Thymelaeaceae article is a stub. You can help Wikipedia by expanding it.

[trop1-1] In: Plantarum vascularium genera: secundum ordines naturales digesta eorumque differentiae et affinitates tabulis diagnostacis expositae. 1: 330. 1841. "Name - !Edgeworthia Meisn". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved June 30, 2011.

[ipni-2] In: Denkschriften der Regensburgischen Botanischen Gesellschaft. Regensburg. iii. (1841) 280. t. 6. "Plant Name Details for Genus Edgeworthia". IPNI. Retrieved June 30, 2011.

[trop2-3] The type species, E. gardneri was taken from its basionym, Daphne gardneri (which was first published in Asiatic Researches 13: 388, pl. 9. 1820.) "Name - Daphne gardneri Wall". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved June 30, 2011.

[4] Iwamoto, A.; Matsumura, Y.; Ohba, H.; Murata, J.; Imaichi, R. (2005-08-01). "Development and structure of trichotomous branching in Edgeworthia chrysantha (Thymelaeaceae)". American Journal of Botany. 92 (8): 1350–1358. doi:10.3732/ajb.92.8.1350. ISSN 0002-9122. PMID 21646155.

[grin-5] GRIN. "Species in GRIN for genus Edgeworthia". Taxonomy for Plants. National Germplasm Resources Laboratory, Beltsville, Maryland: USDA, ARS, National Genetic Resources Program. Archived from the original on December 11, 2012. Retrieved June 30, 2011.

[tpl-6] "Query for Edgeworthia". ThePlantList. Retrieved June 30, 2011.

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